Specifications

DXP Correspondence Manual Station Class Of Service

6.38

Internal /ST

Flash

If industry-standard telephone users access an outside line using the

line group feature and then quickly press and release (flash) the

telephone’s hookswitch, the IST will react in one of two different

ways depending upon how you program this feature.

With the internal IST flash feature disabled, IST users can flash the

hookswitch while on an outside line and generate a hookflash signal

1 on the outside line; however, they cannot flash the hookswitch to

obtain intercom dial tone. (The section 5.11 procedure sets the

hookflash signal time. This signal time determines whether the IST

hookflash signal is long enough to recall the outside line dial tone or

short enough to access the outside line host system features. Refer to

the CO specifications for actual timing requirements.)

With the internal IST flash feature enabled, IST users can flash the

hookswitch while on an outside line and obtain intercom dial tone;

however, if they need to generate a hookflash signal on the outside

line, they must flash for intercom and then dial

08.

Dialing

08 over the intercom, generates an outside line hookflash

signal and returns the telephone to the outside line.

DXP

Correspondence

Manual 6